HighFix available
ffmpeg, libav — security advisory
A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization.
- Products
- ffmpeg, libav
- Affected versions
- 6:0.8.7-1ubuntu2, 6:9.10-1ubuntu1, 6:9.10-1ubuntu2, 6:9.10-1ubuntu5, 6:9.10-1ubuntu6, 6:9.10-1ubuntu7, 6:9.11-2ubuntu1, 6:9.11-2ubuntu2, 6:9.13-0ubuntu0.14.04.1, 6:9.14-0ubuntu0.14.04.1, 6:9.16-0ubuntu0.14.04.1, 6:9.18-0ubuntu0.14.04.1, 6:9.20-0ubuntu0.14.04.1, 6:9.20-0ubuntu0.14.04.1+esm1, 7:2.7.2-1build1, 7:2.8.1-1ubuntu1, 7:2.8.10-0ubuntu0.16.04.1, 7:2.8.11-0ubuntu0.16.04.1, 7:2.8.14-0ubuntu0.16.04.1, 7:2.8.15-0ubuntu0.16.04.1, 7:2.8.15-0ubuntu0.16.04.1+esm1, 7:2.8.17-0ubuntu0.1, 7:2.8.17-0ubuntu0.1+esm1, 7:2.8.17-0ubuntu0.1+esm10, 7:2.8.17-0ubuntu0.1+esm11, 7:2.8.17-0ubuntu0.1+esm12, 7:2.8.17-0ubuntu0.1+esm2, 7:2.8.17-0ubuntu0.1+esm3, 7:2.8.17-0ubuntu0.1+esm4, 7:2.8.17-0ubuntu0.1+esm5, 7:2.8.17-0ubuntu0.1+esm6, 7:2.8.17-0ubuntu0.1+esm7, 7:2.8.17-0ubuntu0.1+esm8, 7:2.8.17-0ubuntu0.1+esm9, 7:2.8.2-1ubuntu1, 7:2.8.3-1, 7:2.8.4-1, 7:2.8.4-1ubuntu1, 7:2.8.4-1ubuntu2, 7:2.8.4-1ubuntu3, 7:2.8.4-1ubuntu4, 7:2.8.6-1ubuntu1, 7:2.8.6-1ubuntu2, 7:2.8.8-0ubuntu0.16.04.1, 7:3.3.4-2, 7:3.3.4-2build3, 7:3.4-2ubuntu2, 7:3.4-4, 7:3.4-4build1, 7:3.4.1-1, 7:3.4.1-1build1, 7:3.4.11-0ubuntu0.1, 7:3.4.11-0ubuntu0.1+esm1, 7:3.4.11-0ubuntu0.1+esm10, 7:3.4.11-0ubuntu0.1+esm2, 7:3.4.11-0ubuntu0.1+esm3, 7:3.4.11-0ubuntu0.1+esm4, 7:3.4.11-0ubuntu0.1+esm5, 7:3.4.11-0ubuntu0.1+esm6, 7:3.4.11-0ubuntu0.1+esm7, 7:3.4.11-0ubuntu0.1+esm8, 7:3.4.11-0ubuntu0.1+esm9, 7:3.4.2-1, 7:3.4.2-1build1, 7:3.4.2-2, 7:3.4.4-0ubuntu0.18.04.1, 7:3.4.6-0ubuntu0.18.04.1, 7:3.4.8-0ubuntu0.2, 7:4.1.4-1build2, 7:4.2.1-2, 7:4.2.1-2ubuntu1, 7:4.2.2-1build1, 7:4.2.2-1ubuntu1, 7:4.2.4-1ubuntu0.1, 7:4.2.4-1ubuntu0.1+esm1, 7:4.2.7-0ubuntu0.1, 7:4.2.7-0ubuntu0.1+esm1, 7:4.2.7-0ubuntu0.1+esm10, 7:4.2.7-0ubuntu0.1+esm2, 7:4.2.7-0ubuntu0.1+esm3, 7:4.2.7-0ubuntu0.1+esm4, 7:4.2.7-0ubuntu0.1+esm5, 7:4.2.7-0ubuntu0.1+esm6, 7:4.2.7-0ubuntu0.1+esm7, 7:4.2.7-0ubuntu0.1+esm8, 7:4.2.7-0ubuntu0.1+esm9, 7:4.4-6ubuntu5, 7:4.4.1-2ubuntu1, 7:4.4.1-3ubuntu1, 7:4.4.1-3ubuntu2, 7:4.4.1-3ubuntu3, 7:4.4.1-3ubuntu5, 7:4.4.2-0ubuntu0.22.04.1, 7:4.4.2-0ubuntu0.22.04.1+esm1, 7:4.4.2-0ubuntu0.22.04.1+esm2, 7:4.4.2-0ubuntu0.22.04.1+esm3, 7:4.4.2-0ubuntu0.22.04.1+esm4, 7:4.4.2-0ubuntu0.22.04.1+esm5, 7:4.4.2-0ubuntu0.22.04.1+esm6, 7:4.4.2-0ubuntu0.22.04.1+esm7, 7:4.4.2-0ubuntu0.22.04.1+esm8, 7:4.4.2-0ubuntu0.22.04.1+esm9, 7:7.1.1-1ubuntu1, 7:7.1.1-1ubuntu2, 7:7.1.1-1ubuntu3, 7:7.1.1-1ubuntu4, 7:7.1.1-1ubuntu4.1, 7:7.1.1-1ubuntu4.2, 7:7.1.2-1ubuntu3, 7:7.1.2-1ubuntu4, 7:7.1.3-1ubuntu1, 7:8.0.1-2ubuntu1, 7:8.0.1-3ubuntu1, 7:8.0.1-3ubuntu2, 7:8.0.1-3ubuntu2+esm1, 7:8.0.1-3ubuntu2+esm3, 7:8.0.1-3ubuntu2+esm4, 7:8.0.1-3ubuntu2+esm5, 7:8.1-3ubuntu3, 7:8.1.2-2ubuntu2
- Fixed versions
- 7:2.8.17-0ubuntu0.1+esm13, 7:3.4.11-0ubuntu0.1+esm11, 7:4.2.7-0ubuntu0.1+esm11, 7:4.4.2-0ubuntu0.22.04.1+esm10
- CVEs
- CVE-2023-6603
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:06 UTC · Revision 1
Source evidence
A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization.
osv:UBUNTU-CVE-2023-6603
libav
Fixed versions: Not specified
ffmpeg
Fixed versions: 7:2.8.17-0ubuntu0.1+esm13
ffmpeg
Fixed versions: 7:3.4.11-0ubuntu0.1+esm11
ffmpeg
Fixed versions: 7:4.2.7-0ubuntu0.1+esm11
ffmpeg
Fixed versions: 7:4.4.2-0ubuntu0.22.04.1+esm10
ffmpeg
Fixed versions: Not specified
ffmpeg
Fixed versions: Not specified
ffmpeg
Fixed versions: Not specified
Complete source record
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{
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},
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},
{
"binary_name": "libavutil60",
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},
{
"binary_name": "libswresample6",
"binary_version": "7:8.1.2-2ubuntu2"
},
{
"binary_name": "libswscale9",
"binary_version": "7:8.1.2-2ubuntu2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ffmpeg",
"purl": "pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fresolute",
"ecosystem": "Ubuntu:Pro:26.04:LTS"
},
"versions": [
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"7:7.1.2-1ubuntu3",
"7:7.1.2-1ubuntu4",
"7:7.1.3-1ubuntu1",
"7:8.0.1-2ubuntu1",
"7:8.0.1-3ubuntu1",
"7:8.0.1-3ubuntu2",
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"7:8.0.1-3ubuntu2+esm3",
"7:8.0.1-3ubuntu2+esm4",
"7:8.0.1-3ubuntu2+esm5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-6603.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavcodec-extra62",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavcodec62",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavdevice62",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavfilter-extra11",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavfilter11",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavformat-extra62",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavformat62",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libavutil60",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libswresample6",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
},
{
"binary_name": "libswscale9",
"binary_version": "7:8.0.1-3ubuntu2+esm5"
}
]
}
}
],
"modified": "2026-10-17T12:56:27.799032036Z",
"provider": "osv",
"upstream": [
"CVE-2023-6603"
],
"references": [
"https://ubuntu.com/security/CVE-2023-6603",
"https://www.cve.org/CVERecord?id=CVE-2023-6603",
"https://bugzilla.redhat.com/show_bug.cgi?id=2334335",
"https://ubuntu.com/security/notices/USN-7830-1",
"https://ubuntu.com/security/notices/USN-7890-1"
]
},
"related_cves": [
{
"value": "CVE-2023-6603",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355708,
"published_at": "2024-12-31T15:15:00+00:00"
}